cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A374662 a(n) = (1/2)*Product_{k=0..n} (F(k)+2), where F=A000045 (Fibonacci numbers).

Table of values

n a(n)
0 1
1 3
2 9
3 36
4 180
5 1260
6 12600
7 189000
8 4347000
9 156492000
10 8920044000
11 811724004000
12 118511704584000
13 27850250577240000
14 10555244968773960000
15 6459809920889663520000
16 6388752011759877221280000
17 10215614466804043676826720000
18 26417579011155256948273897920000

List of values

[1, 3, 9, 36, 180, 1260, 12600, 189000, 4347000, 156492000, 8920044000, 811724004000, 118511704584000, 27850250577240000, 10555244968773960000, 6459809920889663520000, 6388752011759877221280000, 10215614466804043676826720000, 26417579011155256948273897920000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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